BATTERY MODULE

摘要

PROBLEM TO BE SOLVED: To be capable of preventing a bus bar from being mounted to a wrong connection terminal.SOLUTION: A battery module 10 is so configured that a first square type battery 11 as a first battery cell that is held by a first battery holder 31 and a second square type battery 12 as a second battery cell that is held by a second battery holder 51 are alternately disposed side by side. The first battery holder 31 and the second battery holder 51 have positioning parts so as to be alternately disposed.